The muscle relaxant Vidalista 10 tadalafil also increases blood flow. It is produced in India by Centurion Laboratories and sold over the counter in pharmacies and health care facilities. This medication is typically used by men to treat impotence and prostatic enlargement (inflamed prostate). PDE5 inhibitor Vidalista Tablet is used to treat impotence, often known as the inability of men to have a satisfactory erection. During sexual stimulation, tadalafil relaxes the blood vessels in the penis, allowing blood to flow into it.